# US 12,224,825 B2 · Mapping between beams and antenna panels

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- Number: US 12,224,825 B2
- Document ID: US12224825B2
- Status: Granted
- Kind: B2
- Application number: 18/504,529
- Filed: 2023-11-08
- Published: 2024-06-06
- Granted: 2025-02-11
- Earliest claimed: 2020-10-08
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Yan Zhou; Tianyang Bai; Tao Luo
- Web page: https://patentgrep.com/patent/US12224825B2

## CPC

- H04B 7/0404: the mobile station comprising multiple antennas, e.g. to provide uplink diversity
- H04B 7/0608: {Antenna selection according to transmission parameters}
- H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]}
- H04B 7/0695: {using beam selection}
- H04B 7/06956: {using a selection of antenna panels}
- H04B 7/0802: {using antenna selection (H04B7/0868 takes precedence; antenna beam directivity switching H01Q3/24)}
- H04B 7/088: {using beam selection}
- H04B: TRANSMISSION

## Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may generate a report indicating a mapping between antenna panels and reference signal beam indications. The UE may transmit the report and apply the mapping to the antenna panels for reference signals. Numerous other aspects are provided.

## Claims

### Claim 1

A user equipment (UE) for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
receive a configuration associated with sounding reference signals (SRSs), wherein:
the SRSs are associated with one or more beam indications,
the one or more beam indications correspond to spatial relation information and to a downlink reference signal that is a source reference signal, and
the one or more beam indications are associated with a maximum quantity of antenna ports for uplink communications; and
communicate with a network entity based at least in part on the one or more beam indications.

### Claim 2 (depends on 1)

The UE of claim 1, wherein the one or more beam indications are indicative of the maximum quantity of antenna ports.

### Claim 3 (depends on 1)

The UE of claim 1, wherein the uplink communications include SRSs associated with the one or more beam indications.

### Claim 4 (depends on 1)

The UE of claim 1, wherein the one or more processors, to communicate with the network entity, are configured to:
transmit the SRSs on one or more configured SRS resource sets.

### Claim 5 (depends on 1)

The UE of claim 1, wherein the downlink reference signal includes one or more of:
a synchronization signal block (SSB),
a channel state information (CSI) reference signal (CSI-RS),
a demodulation reference signal (DMRS),
a positioning reference signal (PRS), or
a phase tracking reference signal (PTRS).

### Claim 6 (depends on 1)

The UE of claim 1, wherein the one or more processors are configured to:
receive an indication of a mapping between the one or more beam indications and one or more antenna panels.

### Claim 7 (depends on 1)

The UE of claim 1, wherein the one or more processors are configured to:
configure one or more antenna panels based at least in part on the one or more beam indications.

### Claim 8 (depends on 1)

The UE of claim 1, wherein the one or more processors are configured to:
transmit a report for a beam indication of the one or more beam indications, the report including:
a downlink reference signal identifier,
measurement information,
a downlink antenna panel identifier associated with the measurement information, and
an uplink antenna panel identifier or a joint uplink-downlink antenna panel identifier that is mapped to a same antenna panel as the downlink antenna panel identifier.

### Claim 9

A network entity for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to:
transmit a configuration associated with sounding reference signals (SRSs), wherein:
the SRSs are associated with one or more beam indications,
the one or more beam indications correspond to spatial relation information and to a downlink reference signal that is a source reference signal, and
the one or more beam indications are associated with a maximum quantity of antenna ports for uplink communications; and
communicate with a user equipment (UE) based at least in part on the one or more beam indications.

### Claim 10 (depends on 9)

The network entity of claim 9, wherein the one or more beam indications are indicative of the maximum quantity of antenna ports.

### Claim 11 (depends on 9)

The network entity of claim 9, wherein the uplink communications include SRSs associated with the one or more beam indications.

### Claim 12 (depends on 9)

The network entity of claim 9, wherein the one or more processors, to communicate with the network entity, are configured to:
receive the SRSs on one or more configured SRS resource sets.

### Claim 13 (depends on 9)

The network entity of claim 9, wherein the downlink reference signal includes one or more of:
a synchronization signal block (SSB),
a channel state information (CSI) reference signal (CSI-RS),
a demodulation reference signal (DMRS),
a positioning reference signal (PRS), or
a phase tracking reference signal (PTRS).

### Claim 14 (depends on 9)

The network entity of claim 9, wherein the one or more processors are configured to:
transmit an indication of a mapping between the one or more beam indications and one or more antenna panels.

### Claim 15 (depends on 9)

The network entity of claim 9, wherein the one or more processors are configured to:
receive a report for a beam indication of the one or more beam indications, the report including:
a downlink reference signal identifier,
measurement information,
a downlink antenna panel identifier associated with the measurement information, and
an uplink antenna panel identifier or a joint uplink-downlink antenna panel identifier that is mapped to a same antenna panel as the downlink antenna panel identifier.

### Claim 16

A method of wireless communication at a user equipment (UE), comprising:
receiving a configuration associated with sounding reference signals (SRSs), wherein:
the SRSs are associated with one or more beam indications,
the one or more beam indications correspond to spatial relation information and to a downlink reference signal that is a source reference signal, and
the one or more beam indications are associated with a maximum quantity of antenna ports for uplink communications; and
communicating with a network entity based at least in part on the one or more beam indications.

### Claim 17 (depends on 16)

The method of claim 16, wherein the one or more beam indications are indicative of the maximum quantity of antenna ports.

### Claim 18 (depends on 16)

The method of claim 16, wherein the uplink communications include SRSs associated with the one or more beam indications.

### Claim 19 (depends on 16)

The method of claim 16, wherein communicating with the network entity comprises:
transmitting the SRSs on one or more configured SRS resource sets.

### Claim 20 (depends on 16)

The method of claim 16, wherein the downlink reference signal includes one or more of:
a synchronization signal block (SSB),
a channel state information (CSI) reference signal (CSI-RS),
a demodulation reference signal (DMRS),
a positioning reference signal (PRS), or
a phase tracking reference signal (PTRS).